Principles of Consolidation - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) partnership entity	Dec. 31, 2021 USD ($) entity	Dec. 31, 2018 partnership
Variable Interest Entity [Line Items]
Number of partnerships consolidated | partnership	2		2
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of partnerships consolidated | partnership	2
VIE, ownership interest rate (as a percent)	80.00%
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Number of securitization entities to which asset transferred | entity	46
Number of securitization entities called | entity	3
Unpaid principal balance of securitizations purchased	$ 102.0
Gain (loss) on securitization of financial assets	0.3
Loans held for sale, fair value of acquired loans	153.0
Committed loans	$ 135.0
Servicing Investment | Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of partnerships consolidated | entity	2
VIE, ownership interest rate (as a percent)	80.00%
CAFL | Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of entities called | entity		2
Unpaid principal balance of entities called		$ 91.0